Book 1

Eve of Darkness

by S J Day and Sylvia Day

Published 28 April 2009

Book 2

Eve of Destruction

by Sylvia Day and S J Day

Published 2 June 2009
For Evangeline Hollis, a scorching one-night stand has led to a divine punishment: the Mark of Cain. Now reunited, Eve and Cain are working on transitioning their insatiable desire into a tentative new relationship even as she struggles to become a full-fledged Mark, one of thousands of sinners forced to hunt demons as penance. When her training class goes on a field trip to an abandoned military base, things take a dark turn: there's a demon hidden among them, killing off Eve's classmates one by one. Eve's body is still adapting to the Mark and the new abilities and challenges that came with it, such as uncontrollable bloodlust ... which seems to be inciting another kind of lust altogether ... and with Cain out on assignment, his equally sexy brother Abel is more than willing to take the heat ...

Book 3

Eve of Chaos

by Sylvia Day and S J Day

Published 30 June 2009
"How do you tell Satan you ran over his hellhound? Evangeline Hollis has no idea and she doesn't want to find out. Living with the mark of Cain--and the two sexy brothers who come with it--is trouble enough. She doesn't need to borrow more ... Incensed at the loss of his pet, Satan has put a bounty on Eve's head, and Hell's denizens are converging en masse ..."--Page 4 of cover.

Book 3.5

Eve of Sin City

by S J Day and Sylvia Day

Published 1 February 2011

Books 3.2, 3.5

Marked: Warfare and Sin City

by S J Day and Sylvia Day

Published 16 April 2013

Books 1-3

Three Eves

by Sylvia Day

Published 5 February 2019

Books 1-3.5

The Marked Trilogy

by Sylvia Day and S J Day

Published 15 November 2016